Flood-gate



(N0 Modl.) i J. A; GALLOWAY FLOOD GATE.

- N10.291,3277. v PatentedJaJnfl, 11884..

WITNESSES: INVENTOR: d2 Jarrzwulfi'allaw ATTORNEYS.

Ens. 'Phvmunm hm mm"; c.

UNITED STATES PATENT OFFICE.

JAMES ALEXANDER- GALLOWAY, OF SPRING HILL, ASSIGNOR OF ONE-HALF TOEDWARD JAMES REMBERT, OF REMBERTS, SOUTH CAROLINA.

FLOOD-GATE.

SPECIFICATION forming part of Letters Patent No. 291,327, dated January1, 1884. Application filed March 12, 1883. (No modell T M1 whom it mayconcern.-

Be it known that I, JAMES ALEXANDER GALLOWAY, a citizen of the UnitedStates, residing at Spring Hill, in the county of Sumter, and State ofSouth Carolina, have invented a new and useful Improvement inFlood-Gates, of which the following is a specification.

My invention relates to that class of floodgates which operateautomatically,to beopened by the action of the water when it rises abovea given level for the purpose of allowing the water to escape; and itconsists in the construction and combination of parts forming anautomaticflood-gate,hereinafter described and claimed, reference beinghad to the accompanying drawings, in which=- V Figure 1 is asideelevation of my invention, a portion of the front post and of the bucketbeing broken away to show parts in the rear;

and Fig. 2 is a plan view of the same.

a represents four gates, pivoted like the arms of awater-wheel to turnon axle c, which bears in the sides of a frame, h. r This frame slidesin vertical grooves or ways in posts 0 of the dam.

bis alever, pivoted at e in the side posts, 0. This lever carries at oneend the frame h, pivoted on the aXle g, and at the other end a bucket,d, hanging below high'water level.

f is a pipe, fixed in the dam at high-water level, to receive water fromthe forebay B and conduct it to the bucket d. The sides of gates a fitto swing closely against the postsO, and they are adapted to restagainst the flushboard d of the dam when their supportingframe h isdown, and to swing freely over it when frame h rises. The bottom ofbucket (Z is provided with a stem-valve, j, the stem 13 of which isadapted to strike on a base, 70, when the bucket descends, thus openingthe valve. The operation is as follows: When the wa ter in the forebay Brises to high water-level, it enters spout f and flows into bucket (1,cansing it to descend and raise the frame h,so that the gate-arm restingagainst the flush-board d becomes the lightest. Then the gate descends,

and one of its arms a is caught against the flush-board (1, againstopping the water until the forebay again fills high enough to escapethrough spout f. Then the operation described is repeated. The end ofspout f, which enters the dam, is bent downward to take water from theforebay below the top of the water, to avoid floating matter, in orderthat the spout may not get stopped.

I am aware that floodgates have before been operated by a lever,abucket, and spout similar to mine, and I do not claim the same,broadly, as my invention; but

What I claim, and wish to secure by Letters Patent, is-

The side posts of a dam, having vertical grooves in them, and aflush-board connecting the posts, in combination with a lever pivoted tosaid-posts, a bucket hung to one arm of said lever below high-waterlevel, and means, substantially as described, for permitting wa ter toescape from the bucket, a frame hung to the other arm of said lever, toslide in said vertical grooves, a gate having arms like a water-wheel,pivoted to revolve in said frame,

and a spout passing through the dam at high water level, whereby Watermay be carried from the forebay into the bucket and the gate freed fromthe flush-board, as and for the purpose described.

' JAMES ALEXANDER GALLOWAY. Vitnesses:

R. W. DURANT,

S. A. .NoRR-Is.

